Search found 9 matches

by Leia_Acosta_1D
Sun Mar 19, 2017 9:34 am
Forum: Balancing Redox Reactions
Topic: Redox Reactions Given? [ENDORSED]
Replies: 2
Views: 219

Redox Reactions Given? [ENDORSED]

In pg. 50 of the course reader, there's a question stating, "Will a gold ring dissolve in 1 M of nitric acid (HNOs) to form a 1 M Au^3+ solution?" It goes on to state that nitrate anion can be reduced to nitric oxide: NO3^- + 4H^+ +3e^----> NO +2H2O, on the final exam, are we expected to b...
by Leia_Acosta_1D
Sun Mar 12, 2017 8:29 pm
Forum: *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections)
Topic: Cis & Trans
Replies: 3
Views: 347

Cis & Trans

Does anyone know why the letter "E" is denoted for trans? I'm that "Z" is used for cis, because it refers to the higher priority (atomic #) groups, so what does the "E" stand for in regards to trans?
by Leia_Acosta_1D
Sun Mar 05, 2017 9:53 pm
Forum: *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections)
Topic: Nu & E
Replies: 1
Views: 213

Nu & E

Are there ever any rare chemical reaction instances where nucleophiles interact with nucleophiles and electrophiles interact with electrophiles? Like weak nucleophiles with strong nucleophiles, etc.? Or does this not happen at all, given the definition of nucleophiles and electrophiles.
by Leia_Acosta_1D
Mon Feb 27, 2017 11:38 am
Forum: Biological Examples
Topic: Enzymes
Replies: 2
Views: 553


Are enzymes only homogeneous?
by Leia_Acosta_1D
Sun Feb 19, 2017 8:49 pm
Forum: Kinetics vs. Thermodynamics Controlling a Reaction
Topic: Differential Rate Law
Replies: 1
Views: 288

Differential Rate Law

In the course reader, it states that when it comes to the differential rate law, we study initial reaction rates as a function of only reactant concentration to make the analysis easier. Can this be applied to analyzing initial product rates and product concentrations? Or does it not, because it's t...
by Leia_Acosta_1D
Sun Feb 12, 2017 2:11 pm
Forum: Interesting Applications: Rechargeable Batteries (Cell Phones, Notebooks, Cars), Fuel Cells (Space Shuttle), Photovoltaic Cells (Solar Panels), Electrolysis, Rust
Topic: Diluting to Create a Battery
Replies: 1
Views: 297

Diluting to Create a Battery

During lecture, Dr. Lavelle mentioned that you can make a working battery out of any electrolyte solution so long as you dilute it and connect it. He also mentioned a similar thing with lemon juice; if you dilute it, then you can get an electric current with any low volume. I was wondering, what is ...
by Leia_Acosta_1D
Sun Jan 29, 2017 7:44 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Favorable Reactions
Replies: 1
Views: 310

Favorable Reactions

On page 39 of the course reader, it says

delta S + favors forward processes
delta H+ endothermic does not favor forward process

Can someone please explain why this is the case?
by Leia_Acosta_1D
Sun Jan 22, 2017 10:49 am
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Enthalpy vs. Entropy [ENDORSED]
Replies: 2
Views: 320

Enthalpy vs. Entropy [ENDORSED]

What is the difference between enthalpy and entropy?
by Leia_Acosta_1D
Sat Jan 14, 2017 7:56 am
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Clarifying Enthalpy As A State Function
Replies: 1
Views: 202

Clarifying Enthalpy As A State Function

So I understand that enthalpy changes are additive (Hess's Law), so therefore, state functions must be additive. Can someone please explain to me that if this is the case, then why doesn't this make it path dependent?

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